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Finding the Fourth Proportional to 48,428.40, 66,831.84 and 27,206.40

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Solution

The fourth proportional to 48,428.40, 66,831.84 and 27,206.40 is: 37,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.40 : 66,831.84 = 27,206.40 : x
  2. Step 2: Convert to fraction form
    48,428.40/66,831.84 = 27,206.40/x
  3. Step 3: Cross multiply
    48,428.40x = 66,831.84 × 27,206.40
  4. Step 4: Simplify right side
    48,428.40x = 1,818,253,771.78
  5. Step 5: Solve for x
    x = 1,818,253,771.78/48,428.40
  6. Step 6: Final answer
    x = 37,545.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.